noun (n)

• a concluding summary (as in presenting a case before a law court)(noun.communication)

  Synonym:
  rundown, summing up
  

  source: wordnet30
• (physiology) the process whereby multiple stimuli can produce a response (in a muscle or nerve or other part) that one stimulus alone does not produce(noun.process)

  source: wordnet30
• the final aggregate(noun.group)

  Synonym:
  sum, sum total
  

  source: wordnet30
• the arithmetic operation of summing; calculating the sum of two or more numbers(noun.act)

  Example:
  The summation of four and three gives seven.
  

  Synonym:
  addition, plus
  

  source: wordnet30
• The act of summing, or forming a sum, or total amount; also, an aggregate.(noun)

  source: webster1913